' PBASIC library, these routines were written for ARMexpress, and included for general reference
#include <PULSE.bas> ' source in /Program Files/Coridium/BASIClib
SUB PWM ( pin, duty, milliseconds)
Generate an analog signal on pin for milliseconds with a duty cycle of 0 to 255.
A duty cycle of 255 corresponds to an output value of 100%.
The IO direction of the pin will be set to output, the PWM pulse train is output, and then the pin is set to tri-state (input). If the pin is connected to an RC filter, then the voltage will stay on the capacitor for a period of time determined by the load.